2.7 INSTALLING CASING ASSEMBLY AND THREADING
MAKE SURE ALL POWER IS OFF.
Install the casing assembly as follows:
a. Insert liner (Fig. 12) into casing assembly when
aluminum wire is to be used.
NOTE: Liner may also be used with
Figure 9. Adjusting
Setscrew for Conical Roll Shaft
Figure 12. Installing Casing Liner
b. Insert casing outlet guide bushing into the
feeder as explained in the feeder manual.
c. Arrange casing so it is reasonably straight.
Slowly ease welding wire from feeder spool into and
through casing until about 8 inches emerges at front
end of casing.
d. Thread nut end of casing into feeder.
e. Turn drive roll housing of Gun upside down.
Insert wire protruding from casing into drive roll hous -
ing hole, through inlet bushing, and up to conical and
Figure 11, Installing Inlet Guide Bushing
Figure 13. Latching Casing to Drive Roll Housing